US2021198522A1PendingUtilityA1

Water-based coating material and method for manufacturing the same

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Assignee: IND TECH RES INSTPriority: Dec 31, 2019Filed: Dec 31, 2019Published: Jul 1, 2021
Est. expiryDec 31, 2039(~13.4 yrs left)· nominal 20-yr term from priority
Inventors:Kai-Wei LiaoWei-Cheng TangYa-Tin YuYun-Shan HuangYeu-Kuen WeiCheng-Yang TsaiYi-Che Su
C09D 183/14C08G 77/58C08G 77/14C09D 4/00C09D 1/00C09D 5/08C09D 183/00
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Claims

Abstract

A method for manufacturing a water-based coating material is provided, including: (a) reacting tetraalkoxysilane, acidic aqueous solution of vanadium salt, and trialkoxyalkylsilane to form an oligomer; (b) reacting the oligomer with colloidal silica particles to form a modified oligomer; and (c) reacting the modified oligomer with trialkoxyepoxysilane to obtain a water-based coating material.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for manufacturing a water-based coating material, comprising:
 (a) reacting tetraalkoxysilane, acidic aqueous solution of vanadium salt, and trialkoxyalkylsilane to form an oligomer;   (b) reacting the oligomer with colloidal silica particles to form a modified oligomer; and   (c) reacting the modified oligomer with trialkoxyepoxysilane to obtain a water-based coating material.   
     
     
         2 . The method as claimed in  claim 1 , wherein the weight ratio of the tetraalkoxysilane to the vanadium salt is from 1:0.01 to 1:0.25. 
     
     
         3 . The method as claimed in  claim 1 , wherein the weight ratio of the tetraalkoxysilane to the trialkoxyalkylsilane is from 1:0.1 to 1:3.0. 
     
     
         4 . The method as claimed in  claim 1 , wherein the weight ratio of the tetraalkoxysilane to the colloidal silica particles is from 1:0.2 to 1:1.5. 
     
     
         5 . The method as claimed in  claim 1 , wherein the weight ratio of the tetraalkoxysilane to the trialkoxyepoxysilane is from 1:1.0 to 1:10.0. 
     
     
         6 . The method as claimed in  claim 1 , wherein the tetraalkoxysilane comprises tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, or a combination thereof. 
     
     
         7 . The method as claimed in  claim 1 , wherein the trialkoxyalkylsilane comprises methyltrimethoxysilane, methyltriethoxysilane, polyethyleneglycol-modified trialkoxysilane, or a combination thereof. 
     
     
         8 . The method as claimed in  claim 1 , wherein the trialkoxyepoxysilane comprises (3-glycidyloxypropyl)-trimethoxysilane, (3-glycidyloxypropyl)-triethoxysilane, or a combination thereof. 
     
     
         9 . The method as claimed in  claim 1 , wherein the acidic aqueous solution of vanadium salt has a pH value of 2 to 4. 
     
     
         10 . The method as claimed in  claim 1 , wherein the colloidal silica particles have a diameter of 10 nm to 30 nm. 
     
     
         11 . A water-based coating material, comprising:
 a product formed by reacting a modified oligomer with trialkoxyepoxysilane,   wherein the modified oligomer is formed by reacting an oligomer with colloidal silica particles, and   wherein the oligomer is formed by reacting tetraalkoxysilane, acidic aqueous solution of vanadium salt, and trialkoxyalkylsilane.   
     
     
         12 . The water-based coating material as claimed in  claim 11 , wherein the weight ratio of the tetraalkoxysilane to the vanadium salt is from 1:0.01 to 1:0.25. 
     
     
         13 . The water-based coating material as claimed in  claim 11 , wherein the weight ratio of the tetraalkoxysilane to the trialkoxyalkylsilane is from 1:0.1 to 1:3.0. 
     
     
         14 . The water-based coating material as claimed in  claim 11 , wherein the weight ratio of the tetraalkoxysilane to the colloidal silica particles is from 1:0.2 to 1:1.5. 
     
     
         15 . The water-based coating material as claimed in  claim 11 , wherein the weight ratio of the tetraalkoxysilane to the trialkoxyepoxysilane is from 1:1.0 to 1:10.0. 
     
     
         16 . The water-based coating material as claimed in  claim 11 , wherein the tetraalkoxysilane comprises tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, or a combination thereof. 
     
     
         17 . The water-based coating material as claimed in  claim 11 , wherein the trialkoxyalkylsilane comprises methyltrimethoxysilane, methyltriethoxysilane, polyethyleneglycol-modified trialkoxysilane, or a combination thereof. 
     
     
         18 . The water-based coating material as claimed in  claim 11 , wherein the trialkoxyepoxysilane comprises (3-glycidyloxypropyl)-trimethoxysilane, (3-glycidyloxypropyl)-triethoxysilane, or a combination thereof. 
     
     
         19 . The water-based coating material as claimed in  claim 11 , wherein the acidic aqueous solution of vanadium salt has a pH value of 2 to 4. 
     
     
         20 . The water-based coating material as claimed in  claim 11 , wherein the colloidal silica particles have a diameter of 10 nm to 30 nm.

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